Bug 52166 - Inconsistent tap behaviour when using ScrollView on iOS
Summary: Inconsistent tap behaviour when using ScrollView on iOS
Status: CONFIRMED
Alias: None
Product: Forms
Classification: Xamarin
Component: iOS ()
Version: 2.3.3
Hardware: Macintosh Mac OS
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2017-02-01 01:16 UTC by peter
Modified: 2017-12-07 01:11 UTC (History)
6 users (show)

Tags: ios scrollview ac
Is this bug a regression?: ---
Last known good build:


Attachments
Sample Login Test Page (1.23 KB, application/zip)
2017-02-01 01:16 UTC, peter
Details


Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.


Please create a new report for Bug 52166 on Developer Community or GitHub if you have new information to add and do not yet see a matching new report.

If the latest results still closely match this report, you can use the original description:

  • Export the original title and description: Developer Community HTML or GitHub Markdown
  • Copy the title and description into the new report. Adjust them to be up-to-date if needed.
  • Add your new information.

In special cases on GitHub you might also want the comments: GitHub Markdown with public comments

Related Links:
Status:
CONFIRMED

Description peter 2017-02-01 01:16:48 UTC
Created attachment 19673 [details]
Sample Login Test Page

Tap on button does not work when user scrolls page up.

I am using ScrollView on a LoginPage (sample page attached)

1. LoginPage XAML
Login Page contains
 - Logo (120x120)
 - Username Entry and Password Entry
 - SignIn Button

When soft keyboard is visible and view is scrolled up so that ScrollY > 90
Click Handler or Command on SignInButton does not fire, soft keyboard is dismissed.

If user scrolls view so that ScrollY < 90
Click Handler fires and soft keyboard is dismissed

Button should always work if visible to the user.
Comment 1 peteybird 2017-12-07 01:11:46 UTC
I too am experiencing this issue. I tried using the fix suggested here https://forums.xamarin.com/discussion/72586/no-feedback-when-tap-a-button-inside-a-scrollview-only-click-gives-feedback-ios

but I couldn't get that to work despite the renderer firing as expected. Seemed to have no effect.

My layout:
<Scrollview>
<Stacklayout>
<Frame>
<Button>
</Button>
</Frame>
</Stacklayout>
</Scrollview>

Did you ever find a work around for this?